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BS EN 62258-5 is intended to assist all those involved in the supply chain for die devices to comply with the requirements of IEC 62258-1 and IEC 62258-2
Isolation valves separate the actuation mechanism of a valve from the media being moved
— a pushing out device and / or
Quality specifications for cold coiled compression springs
BIM and CAD element developers
Jewellery and precious metals. Grading polished diamonds. Terminology, classification and test methods not-for-sale BS EN 62258-5 is intended1 Scope This document specifies the terminology, classification and the methods that are used for the grading and description of single unmounted polished diamonds over 0,25 carat (ct). This document applies to natural, unmounted, polished diamonds. It is not to be used for fancy coloured diamonds, synthetic diamonds, treated diamonds (other than is allowed for in 7. 4), nor for assembled stones.